This is a clock for the wonderful Flying Tourbillion Model 1.5 escapement by A26. These parts are unmodified by me, but added here for completeness:
A26 offer various ways to make the tourbillion and you should refer to his thing page for that. It also uses modified gears from his other clock as well.
IT should run for about 6 hours, or how ever many times you can wind the string around the drum because that's one hour per wind. To rewind it, just pop off the tourbillion and wind up the string and then set the time again. Sure, it will engage the gears as you wind it, but it doesn't take long to rewind and does not involve taking apart very much of the clock.
You will need:
a 608ZZ ball bearing
3mm stainless steel metal rods
about one meter of string.
This is an advanced clock which is frustratingly hard to get right. Please be prepared for much tinkering if you expect it to run for any length of time.
UPDATE: I've added a cap that goes on the top of the clock hands rod. This should help hold those gears in place so they don't slip forward. I've printed mine in flexible filament.
Makergeeks Crystal Series PLA
You will probably want to print the Tourbillion Frame Top at 100% infill for rigidity.
I have superglued the shafts into the frame for stability because of the amount of weight needed to keep the tourbillion spinning. I have also superglued the Gear and Shaft into the Frame3b Bottom Platform after inserting it through a 608ZZ ball bearing.
Make sure you trim any artifacts or elephant feet from the gears and that you have relatively flat gears when you spin them around the shaft. This model is sensitive to inaccuracies!
There is a small hole in Wheel 3 Drum where you can feed string through to tie it to the inner rings.
For a more detailed look at the assembly of the model, check out the 3D view from TinkerCAD: